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      <title>Class BitwiseMillingEngagement | HiAPI-C# 2025 </title>
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        <article data-uid="Hi.Milling.Engagements.BitwiseMillingEngagement">



  <h1 id="Hi_Milling_Engagements_BitwiseMillingEngagement" data-uid="Hi.Milling.Engagements.BitwiseMillingEngagement" class="text-break">
Class BitwiseMillingEngagement  
  </h1>

  <div class="facts text-secondary">
    <dl><dt>Namespace</dt><dd><a class="xref" href="Hi.html">Hi</a>.<a class="xref" href="Hi.Milling.html">Milling</a>.<a class="xref" href="Hi.Milling.Engagements.html">Engagements</a></dd></dl>
  <dl><dt>Assembly</dt><dd>HiMech.dll</dd></dl>
  </div>

  <div class="markdown summary"><p>Represents a bitwise milling engagement that uses bit arrays to efficiently store engagement information.</p>
</div>
  <div class="markdown conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public class BitwiseMillingEngagement</code></pre>
  </div>




  <dl class="typelist inheritance">
    <dt>Inheritance</dt>
    <dd>
      <div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object">object</a></div>
      <div><span class="xref">BitwiseMillingEngagement</span></div>
    </dd>
  </dl>



  <dl class="typelist inheritedMembers">
    <dt>Inherited Members</dt>
    <dd>
    <div>
      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object)">object.Equals(object)</a>
    </div>
    <div>
      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object-system-object)">object.Equals(object, object)</a>
    </div>
    <div>
      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.gethashcode">object.GetHashCode()</a>
    </div>
    <div>
      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.gettype">object.GetType()</a>
    </div>
    <div>
      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.memberwiseclone">object.MemberwiseClone()</a>
    </div>
    <div>
      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.referenceequals">object.ReferenceEquals(object, object)</a>
    </div>
    <div>
      <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.tostring">object.ToString()</a>
    </div>
  </dd></dl>

  <dl class="typelist extensionMethods">
    <dt>Extension Methods</dt>
    <dd>
  <div>
      <a class="xref" href="Hi.Common.DuplicateUtil.html#Hi_Common_DuplicateUtil_TryDuplicate__1___0_System_Object___">DuplicateUtil.TryDuplicate&lt;TSelf&gt;(TSelf, params object[])</a>
  </div>
  <div>
      <a class="xref" href="Hi.Common.InvokeUtil.html#Hi_Common_InvokeUtil_SelfInvoke__1___0_System_Action___0__">InvokeUtil.SelfInvoke&lt;TSrc&gt;(TSrc, Action&lt;TSrc&gt;)</a>
  </div>
  <div>
      <a class="xref" href="Hi.Common.InvokeUtil.html#Hi_Common_InvokeUtil_SelfInvoke__2___0_System_Func___0___1__">InvokeUtil.SelfInvoke&lt;TSrc, TDst&gt;(TSrc, Func&lt;TSrc, TDst&gt;)</a>
  </div>
  <div>
      <a class="xref" href="Hi.Coloring.ColorUtil.html#Hi_Coloring_ColorUtil_GetGloomyColor_System_Object_System_Double_System_Double_">ColorUtil.GetGloomyColor(object, double, double)</a>
  </div>
  <div>
      <a class="xref" href="Hi.Common.NameUtil.html#Hi_Common_NameUtil_GetSelectionName_System_Object_">NameUtil.GetSelectionName(object)</a>
  </div>
  <div>
      <a class="xref" href="Hi.Common.StringUtil.html#Hi_Common_StringUtil_GetPropertyStringIfToStringNotOverloaded_System_Object_System_Boolean_System_Boolean_">StringUtil.GetPropertyStringIfToStringNotOverloaded(object, bool, bool)</a>
  </div>
  <div>
      <a class="xref" href="Hi.Parallels.LockUtil.html#Hi_Parallels_LockUtil_Lock_System_Object_">LockUtil.Lock(object)</a>
  </div>
  </dd></dl>





  <h2 class="section" id="constructors">Constructors
</h2>


  <a id="Hi_Milling_Engagements_BitwiseMillingEngagement__ctor_" data-uid="Hi.Milling.Engagements.BitwiseMillingEngagement.#ctor*"></a>

  <h3 id="Hi_Milling_Engagements_BitwiseMillingEngagement__ctor_System_Collections_Generic_List_Hi_Geom_PairZr__System_Collections_Generic_List_System_Collections_Generic_List_Hi_Geom_Vec3d___Hi_Common_SeqPair_Hi_Geom_Mat4d__System_Double_System_Double_" data-uid="Hi.Milling.Engagements.BitwiseMillingEngagement.#ctor(System.Collections.Generic.List{Hi.Geom.PairZr},System.Collections.Generic.List{System.Collections.Generic.List{Hi.Geom.Vec3d}},Hi.Common.SeqPair{Hi.Geom.Mat4d},System.Double,System.Double)">
  BitwiseMillingEngagement(List&lt;PairZr&gt;, List&lt;List&lt;Vec3d&gt;&gt;, SeqPair&lt;Mat4d&gt;, double, double)
  
  </h3>

  <div class="markdown level1 summary"><p>Initializes a new instance of the <a class="xref" href="Hi.Milling.Engagements.BitwiseMillingEngagement.html">BitwiseMillingEngagement</a> class.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public BitwiseMillingEngagement(List&lt;PairZr&gt; fluteZrContour, List&lt;List&lt;Vec3d&gt;&gt; orthodoxForwardContours, SeqPair&lt;Mat4d&gt; seqOnToolRunningCoordinate, double zInterval, double rInterval)</code></pre>
  </div>

  <h4 class="section">Parameters</h4>
  <dl class="parameters">
    <dt><code>fluteZrContour</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.list-1">List</a>&lt;<a class="xref" href="Hi.Geom.PairZr.html">PairZr</a>&gt;</dt>
    <dd><p>The flute Z-R contour.</p>
</dd>
    <dt><code>orthodoxForwardContours</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.list-1">List</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.list-1">List</a>&lt;<a class="xref" href="Hi.Geom.Vec3d.html">Vec3d</a>&gt;&gt;</dt>
    <dd><p>The orthodox forward contours.</p>
</dd>
    <dt><code>seqOnToolRunningCoordinate</code> <a class="xref" href="Hi.Common.SeqPair-1.html">SeqPair</a>&lt;<a class="xref" href="Hi.Geom.Mat4d.html">Mat4d</a>&gt;</dt>
    <dd><p>The sequence on tool running coordinate.</p>
</dd>
    <dt><code>zInterval</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
    <dd><p>The Z interval.</p>
</dd>
    <dt><code>rInterval</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
    <dd><p>The R interval.</p>
</dd>
  </dl>












  <h2 class="section" id="fields">Fields
</h2>



  <h3 id="Hi_Milling_Engagements_BitwiseMillingEngagement_angleIntervalNum" data-uid="Hi.Milling.Engagements.BitwiseMillingEngagement.angleIntervalNum">
  angleIntervalNum
  
  </h3>

  <div class="markdown level1 summary"><p>Number of angle interval.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public const int angleIntervalNum = 64</code></pre>
  </div>




  <h4 class="section">Field Value</h4>
  <dl class="parameters">
    <dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
    <dd></dd>
  </dl>










  <h3 id="Hi_Milling_Engagements_BitwiseMillingEngagement_angleInterval_rad" data-uid="Hi.Milling.Engagements.BitwiseMillingEngagement.angleInterval_rad">
  angleInterval_rad
  
  </h3>

  <div class="markdown level1 summary"><p>angle interval in radian.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public const double angleInterval_rad = 0.09817477042468103</code></pre>
  </div>




  <h4 class="section">Field Value</h4>
  <dl class="parameters">
    <dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
    <dd></dd>
  </dl>









  <h2 class="section" id="properties">Properties
</h2>


  <a id="Hi_Milling_Engagements_BitwiseMillingEngagement_BottomBits_" data-uid="Hi.Milling.Engagements.BitwiseMillingEngagement.BottomBits*"></a>

  <h3 id="Hi_Milling_Engagements_BitwiseMillingEngagement_BottomBits" data-uid="Hi.Milling.Engagements.BitwiseMillingEngagement.BottomBits">
  BottomBits
  
  </h3>

  <div class="markdown level1 summary"><p>Gets or sets the bottom bits representing bottom engagement.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public List&lt;ulong&gt; BottomBits { get; set; }</code></pre>
  </div>





  <h4 class="section">Property Value</h4>
  <dl class="parameters">
    <dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.list-1">List</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.uint64">ulong</a>&gt;</dt>
    <dd></dd>
  </dl>








  <a id="Hi_Milling_Engagements_BitwiseMillingEngagement_SideBits_" data-uid="Hi.Milling.Engagements.BitwiseMillingEngagement.SideBits*"></a>

  <h3 id="Hi_Milling_Engagements_BitwiseMillingEngagement_SideBits" data-uid="Hi.Milling.Engagements.BitwiseMillingEngagement.SideBits">
  SideBits
  
  </h3>

  <div class="markdown level1 summary"><p>Gets or sets the side bits representing side engagement.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public List&lt;ulong&gt; SideBits { get; set; }</code></pre>
  </div>





  <h4 class="section">Property Value</h4>
  <dl class="parameters">
    <dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.list-1">List</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.uint64">ulong</a>&gt;</dt>
    <dd></dd>
  </dl>








  <h2 class="section" id="methods">Methods
</h2>


  <a id="Hi_Milling_Engagements_BitwiseMillingEngagement_Delta_" data-uid="Hi.Milling.Engagements.BitwiseMillingEngagement.Delta*"></a>

  <h3 id="Hi_Milling_Engagements_BitwiseMillingEngagement_Delta_Hi_Milling_Engagements_BitwiseMillingEngagement_Hi_Milling_Engagements_BitwiseMillingEngagement_System_Int32__" data-uid="Hi.Milling.Engagements.BitwiseMillingEngagement.Delta(Hi.Milling.Engagements.BitwiseMillingEngagement,Hi.Milling.Engagements.BitwiseMillingEngagement,System.Int32@)">
  Delta(BitwiseMillingEngagement, BitwiseMillingEngagement, out int)
  
  </h3>

  <div class="markdown level1 summary"><p>Contact area difference from <code class="paramref">engagement1</code>.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public static int Delta(BitwiseMillingEngagement engagement0, BitwiseMillingEngagement engagement1, out int deltaIncreaseNum)</code></pre>
  </div>

  <h4 class="section">Parameters</h4>
  <dl class="parameters">
    <dt><code>engagement0</code> <a class="xref" href="Hi.Milling.Engagements.BitwiseMillingEngagement.html">BitwiseMillingEngagement</a></dt>
    <dd><p>previous engagement on time line. Null value is accepted.</p>
</dd>
    <dt><code>engagement1</code> <a class="xref" href="Hi.Milling.Engagements.BitwiseMillingEngagement.html">BitwiseMillingEngagement</a></dt>
    <dd><p>current engagement on time line. Null value is accepted.</p>
</dd>
    <dt><code>deltaIncreaseNum</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
    <dd><p>The relative increase number of contact area from <code class="paramref">engagement0</code> to <code class="paramref">engagement1</code>.
Negative value means the contact area decreased.</p>
</dd>
  </dl>

  <h4 class="section">Returns</h4>
  <dl class="parameters">
    <dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
    <dd><p>Contact area difference</p>
</dd>
  </dl>











  <a id="Hi_Milling_Engagements_BitwiseMillingEngagement_ToBottomBitString_" data-uid="Hi.Milling.Engagements.BitwiseMillingEngagement.ToBottomBitString*"></a>

  <h3 id="Hi_Milling_Engagements_BitwiseMillingEngagement_ToBottomBitString" data-uid="Hi.Milling.Engagements.BitwiseMillingEngagement.ToBottomBitString">
  ToBottomBitString()
  
  </h3>

  <div class="markdown level1 summary"><p>Converts the bottom bits to a string representation.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public string ToBottomBitString()</code></pre>
  </div>


  <h4 class="section">Returns</h4>
  <dl class="parameters">
    <dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a></dt>
    <dd><p>A string representation of the bottom bits.</p>
</dd>
  </dl>











  <a id="Hi_Milling_Engagements_BitwiseMillingEngagement_ToSideBitString_" data-uid="Hi.Milling.Engagements.BitwiseMillingEngagement.ToSideBitString*"></a>

  <h3 id="Hi_Milling_Engagements_BitwiseMillingEngagement_ToSideBitString" data-uid="Hi.Milling.Engagements.BitwiseMillingEngagement.ToSideBitString">
  ToSideBitString()
  
  </h3>

  <div class="markdown level1 summary"><p>Converts the side bits to a string representation.</p>
</div>
  <div class="markdown level1 conceptual"></div>

  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public string ToSideBitString()</code></pre>
  </div>


  <h4 class="section">Returns</h4>
  <dl class="parameters">
    <dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.string">string</a></dt>
    <dd><p>A string representation of the side bits.</p>
</dd>
  </dl>












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